String global replace comparison

JavaScript performance comparison

Revision 26 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var mystring = 'okay.this.is.a.string.that.is.dot.separated';
  var constructedStatic = new RegExp("\\.","g");
  var shorthandStatic = /\./g;
  
  String.prototype.loopReplace = function(replacee,replacer){
    var result = this;
    while(!!~(result = result.replace('.',' ')).indexOf('.')){}
    return result;
  }

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
shorthand, static
result = mystring.replace(shorthandStatic," ");
pending…
constructed, static
result = mystring.replace(constructedStatic," ");
pending…
constructed on the spot
result = mystring.replace(new RegExp("\\.","g")," ");
pending…
shorthand on the spot
result = mystring.replace(/\./g,' ');
pending…
split-join
result = mystring.split('.').join(' ');
pending…
String replace loop
result = mystring.loopReplace('.',' ');
pending…

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Revisions

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